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what is an engines rated speed?

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what is an engines rated speed?

Post by Malk on Sun May 03 2015, 10:34

I am confused. My Wolseley WD2 has a brass plate which states '1.5 bhp at 700 RPM'. By turning the speed control I can get the engine to rev from 650 - 1000 RPM. So does this mean that 700 RPM should be the engines maximum speed when driving equipment? ie water pump places load on engine, revs drop, increase speed control until 700 RPM is reached.

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Re: what is an engines rated speed?

Post by billypurves on Sun May 03 2015, 11:34

It means that at 700 rpm it is kicking out 1.5 hp. On a rally field all you want is the engine ticking over enough to run what ever you are driving, especially if you are a Scot or a Yorkshireman..........less fuel!

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Re: what is an engines rated speed?

Post by blue cat on Sun May 03 2015, 17:55

.....and fast enough to ensure proper splash lubrication by the oil, so not too slow.

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Re: what is an engines rated speed?

Post by Malk on Sun May 03 2015, 19:03

Thanks guys, I shall stop worrying about it then!

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Re: what is an engines rated speed?

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